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WO2019132369A1 - Composition adhésive comprenant au moins deux types de colorants, feuille adhésive et dispositif d'affichage la comprenant - Google Patents

Composition adhésive comprenant au moins deux types de colorants, feuille adhésive et dispositif d'affichage la comprenant Download PDF

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Publication number
WO2019132369A1
WO2019132369A1 PCT/KR2018/016078 KR2018016078W WO2019132369A1 WO 2019132369 A1 WO2019132369 A1 WO 2019132369A1 KR 2018016078 W KR2018016078 W KR 2018016078W WO 2019132369 A1 WO2019132369 A1 WO 2019132369A1
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Prior art keywords
group
carbon atoms
formula
hydrogen
light absorbing
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Ceased
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PCT/KR2018/016078
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English (en)
Korean (ko)
Inventor
정준호
주현영
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LMS Co Ltd
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LMS Co Ltd
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Priority to CN201880083354.3A priority Critical patent/CN111542577B/zh
Publication of WO2019132369A1 publication Critical patent/WO2019132369A1/fr
Priority to US16/915,647 priority patent/US11898064B2/en
Anticipated expiration legal-status Critical
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/10—Adhesives in the form of films or foils without carriers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/14—Styryl dyes
    • C09B23/143—Styryl dyes the ethylene chain carrying a COOH or a functionally modified derivative, e.g.-CN, -COR, -COOR, -CON=, C6H5-CH=C-CN
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B57/00—Other synthetic dyes of known constitution
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/006—Preparation of organic pigments
    • C09B67/0063—Preparation of organic pigments of organic pigments with only macromolecular substances
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08—Macromolecular additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J201/00—Adhesives based on unspecified macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/204—Plasma displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/206—Organic displays, e.g. OLED
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0041—Optical brightening agents, organic pigments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/315—Compounds containing carbon-to-nitrogen triple bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3477—Six-membered rings
    • C08K5/3492—Triazines
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/03—Viewing layer characterised by chemical composition
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/03—Viewing layer characterised by chemical composition
    • C09K2323/031—Polarizer or dye
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/05—Bonding or intermediate layer characterised by chemical composition, e.g. sealant or spacer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/05—Bonding or intermediate layer characterised by chemical composition, e.g. sealant or spacer
    • C09K2323/053—Organic silicon compound, e.g. organosilicon
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/05—Bonding or intermediate layer characterised by chemical composition, e.g. sealant or spacer
    • C09K2323/057—Ester polymer, e.g. polycarbonate, polyacrylate or polyester

Definitions

  • the present invention relates to a pressure-sensitive adhesive sheet, a pressure-sensitive adhesive composition, and a display device including the pressure-sensitive adhesive sheet.
  • Such a flat panel display device includes a display device such as a liquid crystal display, a plasma display panel, and an organic light emitting device.
  • the organic light emitting display has a wide viewing angle and a fast response speed, so that a high-quality display can be realized.
  • an organic light emitting display device having a microcavity structure has an advantage that the output efficiency can be increased by utilizing the resonance effect of light between the upper and lower electrodes, and the color purity of light can be improved.
  • the organic light emitting display includes a substrate, a first electrode having a light-transmitting property formed on the substrate, an organic layer formed on the first electrode, and a second electrode formed on the organic layer and having a high reflectance.
  • the substrate uses a glass substrate or a plastic substrate.
  • the organic material layer includes a hole injecting layer, a hole transporting layer, a light generating layer, a hole blocking layer, and an electron transporting layer. That is, a plurality of organic material layers are stacked between the first electrode and the second electrode, so that an organic light emitting display having a multilayer structure is manufactured.
  • Such display devices have a problem in that they can not effectively block the light in the ultraviolet ray region, which deteriorates the visibility of the device, and causes the durability of the device to deteriorate in an outdoor use environment in which sunlight is irradiated.
  • An object of the present invention is to provide a pressure-sensitive adhesive sheet and a pressure-sensitive adhesive composition which effectively block light in the ultraviolet ray region without impairing transmittance and tackiness to light in the visible light region.
  • Another object of the present invention is to provide a display device comprising the pressure-sensitive adhesive sheet or the pressure-sensitive adhesive composition.
  • the combined content of the first and second light absorbing dyes is 90 parts by weight or less
  • first light absorbing dye is represented by the following formula (1) and the second light absorbing dye is represented by the following formula (2).
  • a 1 , A 2 and A 3 are each independently a phenyl group or the formula (1-a)
  • At least one of A 1 , A 2 and A 3 is represented by the following formula 1-a,
  • B 1 to B 5 each independently represent hydrogen, a hydroxyl group, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, An aryl group or the formula (1-b)
  • R 1 is alkylene having 1 to 6 carbon atoms and R 2 is hydrogen, a hydroxy group, an alkoxy group having 1 to 16 carbon atoms, an alkyl group having 1 to 12 carbon atoms, or an alkylamine group having 1 to 12 carbon atoms,
  • R 1 to R 3 are each independently hydrogen, cyano or the following formula (2-a)
  • a 1 to a 5 each independently represent hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or an aryl group having 6 to 18 carbon atoms ,
  • R < 4 &gt is hydrogen, a cyano group or the following formula (2-b)
  • a 6 is hydrogen or an alkyl group having 1 to 18 carbon atoms
  • At least one hydrogen of R 1 to R 4 in Formula 2 is independently selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an aryl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryl group having 6 to 20 carbon atoms, An aryloxy group having 6 to 20 carbon atoms, an alkoxycarbonyl group having 1 to 6 carbon atoms, a halogen group, a cyano group, a nitro group, a hydroxyl group and a carboxy group Lt; / RTI >
  • first light absorbing dye is represented by the following formula (1) and the second light absorbing dye is represented by the following formula (2).
  • a 1 , A 2 and A 3 are each independently a phenyl group or the formula (1-a)
  • At least one of A 1 , A 2 and A 3 is represented by the following formula 1-a,
  • B 1 to B 5 each independently represent hydrogen, a hydroxyl group, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, An aryl group or the formula (1-b)
  • R 1 is alkylene having 1 to 6 carbon atoms and R 2 is hydrogen, a hydroxy group, an alkoxy group having 1 to 16 carbon atoms, an alkyl group having 1 to 12 carbon atoms, or an alkylamine group having 1 to 12 carbon atoms,
  • R 1 to R 3 are each independently hydrogen, cyano or the following formula (2-a)
  • a 1 to a 5 each independently represent hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or an aryl group having 6 to 18 carbon atoms ,
  • R < 4 &gt is hydrogen, a cyano group or the following formula (2-b)
  • a 6 is hydrogen or an alkyl group having 1 to 18 carbon atoms
  • At least one hydrogen of R 1 to R 4 in Formula 2 is independently selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an aryl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryl group having 6 to 20 carbon atoms, An aryloxy group having 6 to 20 carbon atoms, an alkoxycarbonyl group having 1 to 6 carbon atoms, a halogen group, a cyano group, a nitro group, a hydroxyl group and a carboxy group Lt; / RTI >
  • the present invention provides a display device comprising an adhesive layer formed from the adhesive composition described above.
  • the pressure-sensitive adhesive composition and / or the pressure-sensitive adhesive sheet according to the present invention can effectively block light in the ultraviolet wavelength region without deteriorating the light transmittance and adhesive performance to light in the visible light region and can be applied to various kinds of display devices Do.
  • FIG. 1 is a schematic view showing a cross-sectional structure of a pressure-sensitive adhesive sheet according to an embodiment of the present invention.
  • FIG. 2 is a schematic view showing a cross-sectional structure of a pressure-sensitive adhesive sheet according to another embodiment of the present invention.
  • 3 and 4 are schematic views showing a cross-sectional structure of a pressure-sensitive adhesive sheet with a release film according to an embodiment of the present invention, respectively.
  • 5 to 7 are schematic views showing a cross-sectional structure of a display device according to an embodiment of the present invention, respectively.
  • alkyl group means a substituent derived from a saturated hydrocarbon in a linear or branched form.
  • alkyl group examples include a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, an n-butyl group (n butyl group, a sec-butyl group, a tert-butyl group, an n-pentyl group, a 1,1- dimethylpropyl group, 1,2-dimethylpropyl group, 2,2-dimethylpropyl group, 1-ethylpropyl group, 2- Ethylpropyl group, an n-hexyl group, a 1-methyl-2-ethylpropyl group and a 1-ethyl-2- (1-ethyl-2-methylpropyl group), 1,1,2-trimethylpropyl group, 1-propylpropyl group and 1-methylbutyl group methylbutyl group, a 2-methylbutyl group, a 1,1-dimethylbutyl group, a 1,2-dimethylbutyl group, a
  • alkyl group may have from 1 to 20 carbon atoms, for example, from 1 to 12 carbon atoms, from 1 to 6 carbon atoms, or from 1 to 4 carbon atoms.
  • cycloalkyl group means a substituent derived from a monocyclic saturated hydrocarbon.
  • cycloalkyl group examples include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group (for example, cycloheptyl group, cyclooctyl group, and the like.
  • the "cycloalkyl group” may have from 3 to 20 carbon atoms, for example, from 3 to 12 carbon atoms, or from 3 to 6 carbon atoms.
  • aryl group means a monovalent substituent derived from an aromatic hydrocarbon.
  • aryl group examples include a phenyl group, a naphthyl group, an anthracenyl group, a phenanthryl group, a naphthacenyl group, a pyrenyl group, a pyrenyl group, a tolyl group, a biphenyl group, a terphenyl group, a chrycenyl group, a spirobifluorenyl group, a fluoranthenyl group (for example, a fluorenyl group, a perfluorenyl group, a fluorenyl group, a fluorenyl group, a perylenyl group, an indenyl group, an azulenyl group, a heptalenyl group, a phenalenyl group, , Phenanthrenyl group and the like.
  • fluoranthenyl group for example, a fluorenyl group, a perfluor
  • the "aryl group” may have from 6 to 30 carbon atoms, for example, from 6 to 10 carbon atoms, from 6 to 14 carbon atoms, from 6 to 18 carbon atoms, or from 6 to 12 carbon atoms.
  • heteroaryl group means an "aromatic heterocycle” or “heterocyclic” derived from a monocyclic or condensed ring.
  • the “heteroaryl group” includes at least one hetero atom such as nitrogen (N), sulfur (S), oxygen (O), phosphorus (P), selenium (Se) Three, or four.
  • heteroaryl group examples include a pyrrolyl group, a pyridyl group, a pyridinyl group, a pyridazinyl group, a pyrimidinyl group, A pyrazolyl group, a triazolyl group, a tetrazolyl group, a benzotriazolyl group, a pyrazolyl group, an imidazolyl group, an imidazolyl group, A benzimidazolyl group, an indolyl group, an indolinyl group, an isoindolyl group, an indolizinyl group, a purinyl group, An indazolyl group, a quinolyl group, an isoquinolinyl group, a quinolizinyl group, a phthalazinyl group, a naphthyridinyl group (e.g., naphthylidinyl group, quinoxalin
  • heteroaryl group examples include a thiazolyl group, an isothiazolyl group, a benzothiazolyl group, a benzothiadiazolyl group, a phenothiazoyl group, An isoxazolyl group, a furazanyl group, a phenoxazinyl group, an oxazolyl group, a benzoxazolyl group, a benzothiazolyl group, An oxadiazolyl group, an oxadiazolyl group, a pyrazoloxazolyl group, an imidazothiazolyl group, a thienofuranyl group, a furopyrrolyl group, a pyridoxazinyl group (pyridoxazinyl group), and the like.
  • heteroaryl group may have from 2 to 20 carbon atoms, for example, from 4 to 19 carbon atoms, from 4 to 15 carbon atoms or from 5 to 11 carbon atoms.
  • the heteroaryl group may have a ring member of 5 to 21.
  • aralkyl group in the present invention means a saturated hydrocarbon substituent to which a monovalent substituent derived from an aromatic hydrocarbon is bonded to a hydrogen atom of a terminal hydrocarbon.
  • aralkyl group means an alkyl group whose chain terminal is substituted with an aryl group. Examples thereof include a benzyl group, a phenethyl group, a phenylpropyl group, a naphthalenylmethyl group ), Naphthalenylethyl group and the like.
  • adheresive refers generally to a case where the adhesive has adhesion to an adjacent substrate, and includes both cases of adhesion or adhesion depending on the degree of stickiness.
  • the present invention provides a pressure-sensitive adhesive sheet having a structure in which a light absorbing dye is dispersed in a tacky binder resin.
  • the adhesive sheet according to the present invention is a structure including a light absorbing dye.
  • the adhesive sheet according to the present invention is a structure comprising a resin matrix and a light absorbing dye dispersed in the resin matrix.
  • the light absorbing dye includes at least one of first and second light absorbing dyes, for example, the first light absorbing dye is a triazine dye, and the second light absorbing dye contains a double bond Lt; / RTI >
  • the pressure-sensitive adhesive sheet according to the present invention comprises:
  • the combined content of the first and second light absorbing dyes is 90 parts by weight or less
  • the first light absorbing dye is represented by the following formula (1) and the second light absorbing dye is represented by the following formula (2).
  • a 1 , A 2 and A 3 are each independently a phenyl group or the formula (1-a)
  • At least one of A 1 , A 2 and A 3 is represented by the following formula 1-a,
  • B 1 to B 5 each independently represent hydrogen, a hydroxyl group, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, An aryl group or the formula (1-b)
  • R 1 is alkylene having 1 to 6 carbon atoms and R 2 is hydrogen, a hydroxy group, an alkoxy group having 1 to 16 carbon atoms, an alkyl group having 1 to 12 carbon atoms, or an alkylamine group having 1 to 12 carbon atoms,
  • At least one hydrogen of A 1 , A 2, and A 3 in Formula 1 is independently selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryl group having 6 to 20 carbon atoms , A heteroaryl group having 2 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an arylthio group having 6 to 20 carbon atoms, an alkoxycarbonyl group having 1 to 12 carbon atoms, a halogen group, a cyano group, a nitro group, ≪ / RTI >
  • R 1 to R 3 are each independently hydrogen, cyano or the following formula (2-a)
  • a 1 to a 5 each independently represent hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or an aryl group having 6 to 18 carbon atoms ,
  • R < 4 &gt is hydrogen, a cyano group or the following formula (2-b)
  • a 6 is hydrogen or an alkyl group having 1 to 18 carbon atoms
  • At least one hydrogen of R 1 to R 4 in Formula 2 is independently selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an aryl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryl group having 6 to 20 carbon atoms, An aryloxy group having 6 to 20 carbon atoms, an alkoxycarbonyl group having 1 to 6 carbon atoms, a halogen group, a cyano group, a nitro group, a hydroxyl group and a carboxy group Lt; / RTI >
  • the first light-absorbing dye is represented by the general formula (1-a), for example,
  • B 1 to B 5 each independently represent hydrogen, a hydroxyl group, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, An aryl group or the formula (1-b)
  • B 1 to B 5 represents the case of formula (1-b).
  • the adhesive sheet may have a content of the light absorbing dye dispersed in the binder resin of 90 parts by weight or less based on 100 parts by weight of the binder resin. More specifically, the content of the light absorbing dye may be 3 to 90 parts by weight, 4 to 87 parts by weight, 5 to 75 parts by weight, 50 to 90 parts by weight, or 55 to 87 parts by weight.
  • the content of the light absorbing dye may be 3 to 90 parts by weight, 4 to 87 parts by weight, 5 to 75 parts by weight, 50 to 90 parts by weight, or 55 to 87 parts by weight.
  • the mixing ratio of the first light absorbing dye and the second light absorbing dye according to the present invention may range from 1:99 to 99: 1 by weight. Specifically, the mixing ratio of the first light absorbing dye and the second light absorbing dye is 1: 3 to 99: 1 by weight, 1: 2 to 99: 1 by weight, 1: 1 to 99: 1 by weight, : 1, or 1: 5 to 15: 1 by weight.
  • the present invention can selectively and effectively block light in the ultraviolet region without interfering with the transmittance of light in the visible light region by mixing the contents of the two types of light absorbing dyes in the aforementioned range.
  • the pressure-sensitive adhesive sheet satisfies the following conditions 1 and 2.
  • the light transmittance to a wavelength of 405 nm is 5% or less
  • the light transmittance to 410 nm wavelength is 10% or less
  • the light transmittance to 420 nm wavelength is 60% or less
  • the light transmittance to 430 nm wavelength is 75% or more
  • the pressure-sensitive adhesive sheet may satisfy Condition 3 below.
  • T 20% represents a wavelength value at a point where light transmittance is 20% in a 405-430 nm wavelength region
  • T 10% represents a wavelength value at a point where light transmittance is 10% in a 405-430 nm wavelength region.
  • the slope of the light absorption spectrum in the wavelength region of 405 to 430 nm is very steep. As a result, it can be seen that light in a wavelength region of 405 nm or less is effectively blocked, while transmission to light in a wavelength region of 430 nm or more is not inhibited at the same time.
  • the adhesive sheet according to the present invention effectively blocks light in a wavelength region of 410 nm or less. Accordingly, by applying the adhesive sheet to a display device, it is possible to prevent or reduce the color temperature change due to the discoloration or the shift of the color coordinate due to ultraviolet ray irradiation during exposure to sunlight.
  • the pressure-sensitive adhesive sheet can satisfy the following conditions 4 and 5.
  • the light transmittance for wavelengths below 405 nm averages 0.5% or less
  • the light transmittance to 410 nm wavelength is 5% or less.
  • the light transmittance to 420 nm wavelength is 52% or less
  • the light transmittance to 430 nm wavelength is over 78%.
  • the thickness of the pressure-sensitive adhesive sheet is not particularly limited as long as it is applicable to a display device, but may range from 5 to 350 ⁇ m on average. Specifically, the thickness of the pressure-sensitive adhesive sheet may be in the range of 100 to 300 mu m or 10 to 30 mu m on average. On the other hand, when the thickness of the adhesive sheet is in the range of 10 to 30 mu m on average, the adhesive force can be appropriately maintained.
  • the adhesive sheet when the thickness of the adhesive sheet is in the range of 10 to 30 mu m on average, the adhesive sheet may have an adhesive strength to glass of 360 gf / inch or more. Specifically, Or in the range of 370 to 450 gf / inch.
  • the pressure-sensitive adhesive sheet according to the present invention may have an adhesive force to glass of 360 to 500 gf / inch or 370 to 450 gf / inch when the average thickness is 18 ⁇ ⁇ .
  • the pressure-sensitive adhesive sheet according to the present invention has an advantage of being able to obtain a sufficient scattering-preventing effect in the process step by controlling the adhesive force within the above-mentioned range, and furthermore, the rework process for reusing the glass is easy when the process is defective.
  • the pressure-sensitive adhesive sheet according to the present invention includes both cases in which the pressure-sensitive adhesive composition is produced in the form of a film or coated on a target substrate.
  • the process for producing a film using a pressure-sensitive adhesive composition is well-known, and therefore, a detailed description thereof will be omitted.
  • the pressure-sensitive adhesive sheet according to the present invention may further comprise a particulate component.
  • the adhesive layer further comprises a particulate component having an average refractive index in the range of 1.3 to 2.1.
  • the pressure sensitive adhesive sheet may further include a release film formed on one or both sides of the pressure sensitive adhesive sheet. This is for ease of transportation and ease of movement by process step.
  • the adhesive sheet may further include an optical film.
  • the optical film includes a polarizing film.
  • a pressure-sensitive adhesive sheet can be applied to various types of display devices.
  • the polarizing film may be a laminated structure including a polarizer and a retardation film.
  • the polarizing film may include the above-described pressure-sensitive adhesive layer or pressure-sensitive adhesive sheet between the polarizer and the retardation film.
  • the polarizer may be, for example, a TAC / PVA / TAC structure.
  • the retardation film may be a structure formed of PC, COP or a separate coating layer.
  • the retardation film may be a lambda / 4 retardation film or a lambda / 2 retardation film.
  • the adhesive sheet according to the present invention can selectively block light in the ultraviolet region by mixing a light absorbing dye.
  • the pressure-sensitive adhesive sheet according to the present invention can minimize the change in spectral transmittance due to exposure to sunlight, thereby realizing excellent light resistance and minimizing a color change, that is, a color temperature change on a display device.
  • the adhesive sheet was subjected to an experiment in which the exposed sheet was exposed to the sunlight for 8 hours under the condition of 85 ° C for 8 hours and then exposed for 8 hours under the sunlight cutoff condition for 45 times, and the light having a wavelength of 405 nm after the experiment the spectral transmittance (T o,%) is calculated on the difference between the spectral transmittance (T 1,%) for the light having the same wavelength.
  • the solar irradiation used a xenon lamp with an illuminance of 700 to 900 W / m 2.
  • the pressure-sensitive adhesive sheet satisfies the following condition 6 in the solar irradiation experiment.
  • T 0 represents the transmittance of the sample with respect to the light having a wavelength of 405 nm measured before the exposure to the sunlight
  • T 1 denotes the transmittance of the sample with respect to the light having the wavelength of 405 nm measured after the exposure to the sunlight.
  • the amount of change in spectral transmittance according to Condition 6 is in the range of 5% or less, 3% or less, or 1% or less.
  • the present invention also provides a pressure sensitive adhesive composition, wherein, in one embodiment, the pressure sensitive adhesive composition comprises: a binder resin; And a light absorbing dye dispersed in the binder resin.
  • the pressure-sensitive adhesive composition comprises a binder resin; And first and second light absorbing dyes dispersed in the binder resin, wherein the first light absorbing dye is represented by the following formula (1), and the second light absorbing dye is represented by the following formula (2) .
  • a 1 , A 2 and A 3 are each independently a phenyl group or the formula (1-a)
  • At least one of A 1 , A 2 and A 3 is represented by the following formula 1-a,
  • B 1 to B 5 each independently represent hydrogen, a hydroxyl group, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, An aryl group or the formula (1-b)
  • R 1 is alkylene having 1 to 6 carbon atoms and R 2 is hydrogen, a hydroxy group, an alkoxy group having 1 to 16 carbon atoms, an alkyl group having 1 to 12 carbon atoms, or an alkylamine group having 1 to 12 carbon atoms,
  • At least one hydrogen of A 1 , A 2, and A 3 in Formula 1 is independently selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryl group having 6 to 20 carbon atoms , A heteroaryl group having 2 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an arylthio group having 6 to 20 carbon atoms, an alkoxycarbonyl group having 1 to 12 carbon atoms, a halogen group, a cyano group, a nitro group, ≪ / RTI >
  • R 1 to R 3 are each independently hydrogen, cyano or the following formula (2-a)
  • a 1 to a 5 each independently represent hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or an aryl group having 6 to 18 carbon atoms ,
  • R < 4 &gt is hydrogen, a cyano group or the following formula (2-b)
  • a 6 is hydrogen or an alkyl group having 1 to 18 carbon atoms
  • At least one hydrogen of R 1 to R 4 in Formula 2 is independently selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an aryl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, an aryl group having 6 to 20 carbon atoms, An aryloxy group having 6 to 20 carbon atoms, an alkoxycarbonyl group having 1 to 6 carbon atoms, a halogen group, a cyano group, a nitro group, a hydroxyl group and a carboxy group Lt; / RTI >
  • the first light absorbing dye represented by Formula 1 may be represented by Formula 3 below.
  • a 1 and A 2 are each independently a phenyl group or a group represented by the formula (3-a)
  • At least one of A 1 , A 2 and A 3 is represented by the following formula (3-a)
  • B 1 to B 5 each independently represent hydrogen, a hydroxyl group, an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, An aryl group or the formula (3-b)
  • R 1 is alkylene having 1 to 6 carbon atoms and R 2 is hydrogen, a hydroxyl group, an alkoxy group having 1 to 12 carbon atoms, an alkyl group having 1 to 12 carbon atoms, or an alkylamine group having 1 to 12 carbon atoms.
  • a 1 , A 2 and A 3 are any of structures 1 to 33 shown in Table 1 below.
  • the second light absorbing dye represented by Formula 2 may be represented by Formula 4 below.
  • R 2 is a cyano group
  • R < 3 > is hydrogen
  • Ra is represented by the following formula 4-a,
  • a 1 to a 5 each independently represent hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, or an aryl group having 6 to 18 carbon atoms ,
  • Rb is represented by the following formula 4-b,
  • a 6 is hydrogen or an alkyl group having 1 to 10 carbon atoms
  • At least one hydrogen of R 2 , R 3 , R a and R b in Formula 4 is independently selected from the group consisting of an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, Group, a heteroaryl group having 2 to 20 carbon atoms, an aryloxy group having 6 to 20 carbon atoms, an arylthio group having 6 to 20 carbon atoms, an alkoxycarbonyl group having 1 to 6 carbon atoms, a halogen group, a cyano group, a nitro group, And a carboxyl group.
  • R 1 to R 4 include the case as shown in Table 2 below.
  • the adhesive composition according to the present invention may have a content of the light absorbing dye dispersed in the binder resin of 90 parts by weight or less based on 100 parts by weight of the binder resin. More specifically, the content of the light absorbing dye may be 3 to 90 parts by weight, 4 to 87 parts by weight, or 5 to 75 parts by weight.
  • the content of the light absorbing dye may be 3 to 90 parts by weight, 4 to 87 parts by weight, or 5 to 75 parts by weight.
  • the mixing ratio of the first light absorbing dye and the second light absorbing dye according to the present invention may range from 1:99 to 99: 1 by weight.
  • the mixing ratio of the first light absorbing dye and the second light absorbing dye may be 1: 3 to 99: 1 by weight, 1: 2 to 99: 1 by weight, or 1: 2 to 99: 1 by weight.
  • the adhesive composition according to the present invention may further comprise a particulate component dispersed in the binder resin.
  • the particulate component may have an average refractive index in the range of 1.3 to 2.1, or 1.4 to 1.6.
  • the particulate component is not particularly limited as long as it has the refractive index, and includes, for example, at least one metal particle selected from the group consisting of metal oxides, metal nitrides and metal oxynitrides; At least one organic particle selected from the group consisting of silicon and an acrylic resin; And organic-inorganic particles containing a component constituting the metal particles and a component constituting the organic particles.
  • the metal particles may be any one of or a mixture of two or more of the elements of Zr, Al, Fe, Cu, Ti, Au, Ag, Mg and Zn and may contain oxides, nitrides and / .
  • the organic particles may be silicon particles or bead-shaped acrylic resin particles.
  • the oil-inorganic particles containing the components constituting the metal particles and the components constituting the organic particles are not excluded.
  • the particulate component may be at least one of ZrO2, TiO2, Al2O3, MgO, and SiO2, and the particle shape may be spherical or various polygonal shapes.
  • the particulate component may be, for example, an average particle size of the particulate component of 0.1 to 5 mu m, 0.5 to 3 mu m, 3 to 5 mu m, or 2 to 4 mu m.
  • the average particle diameter of the particulate component takes into account the refractive index value or whether the transmittance of the visible light region is inhibited.
  • the Mie scattering effect can be maximized and forward scattering can be performed, thereby reducing light directivity of a specific wavelength.
  • the refractive index difference between the particulate component and the binder resin may be 0.05 or more.
  • the refractive index difference between the particulate component and the binder resin may be specifically in the range of 0.05 to 0.4, 0.07 to 0.3, or 0.08 to 0.15.
  • the refractive index of the particulate component and the binder resin are designed so as to differ from each other by a predetermined level or more, thereby enhancing the light transmittance in the visible light region.
  • the binder resin included in the adhesive composition according to the present invention is not particularly limited as long as it is a tacky resin, and examples thereof include acrylic resin, rubber resin, vinyl resin, silicone resin, polyester resin, polyamide resin, urethane resin, Epoxy resin, or a mixture of two or more of the above resins.
  • an acrylic resin can be used in terms of weather resistance, cost, and shape freedom of the pressure-sensitive adhesive.
  • the present invention provides a display device including the pressure-sensitive adhesive layer or the pressure-sensitive adhesive sheet formed from the pressure-sensitive adhesive composition described above.
  • the adhesive layer or the pressure-sensitive adhesive sheet formed from the pressure-sensitive adhesive composition described above will be collectively referred to as an " pressure-sensitive adhesive layer " for convenience.
  • the display device has a structure in which a display panel, a polarizing film, a touch film, and a light transmissive window layer are sequentially layered,
  • the display device may have a structure in which a display panel, a touch film, a polarizing film, and a light transmissible window layer are sequentially laminated,
  • the adhesive layer is the adhesive layer
  • the polarizing film may have a multi-layer structure including a polarizer and a retardation film. Further, since the adhesive layer is positioned between the polarizer and the display panel, light in the ultraviolet ray region can be effectively blocked without affecting the performance of the display device.
  • the adhesive layer is located between the display panel and the polarizer, and more specifically, may be located at any one or more of the interfaces between the layers when a plurality of optical layers exist between the display panel and the polarizer.
  • the display device includes: a display panel; Polarizing film; A touch film, and a light transmissive window layer,
  • the polarizing film has a multilayer structure including a polarizer
  • the adhesive layer may be a structure formed between the polarizer and the display panel.
  • the display device may have a structure in which a display panel, a polarizing film, a touch film, and a light transmissive window layer are sequentially laminated; A display panel, a touch film, a polarizing film, and a light transmissive window layer are sequentially stacked.
  • the display device may be, for example, an OLED device. This is in line with the tendency that the demand for mobile devices employing OLED devices has recently increased.
  • the display device according to the present invention can selectively block light in the ultraviolet region and effectively prevent color change or color temperature change due to exposure to sunlight.
  • the display device can be applied to various types of display devices, for example, a TV, a monitor, a mobile phone, a navigation device, a notebook computer, a tablet PC, or the like. Further, the display device according to the present invention encompasses all cases including the pressure-sensitive adhesive layer, the pressure-sensitive adhesive sheet or the laminated structure formed of the pressure-sensitive adhesive composition described above.
  • 1 is a view showing a structure in which a light absorbing dye 12 is dispersed in a binder resin 11 according to one embodiment of the present invention.
  • 2 is a structure of a pressure sensitive adhesive sheet 20 according to another embodiment of the present invention in which a light absorbing dye 22 and a particulate component 23 are dispersed together in a binder resin 21.
  • FIG. 3 shows a laminated structure of the adhesive sheet 10 according to one embodiment of the present invention, in which the release film 30 is laminated on one side of the adhesive sheet 10 on which the light absorbing dye is dispersed.
  • a structure in which the release films 31 and 32 are laminated on both sides of the adhesive sheet 10 is also included.
  • the release films 30, 31, and 32 formed on one or both surfaces of the adhesive sheet 10 can be removed according to the process steps.
  • the display device 100 has a structure in which a polarizing film 120, a touch film 150, an adhesive layer 130, and a window layer 140 are sequentially stacked on an OLED panel 110.
  • the adhesive layer 130 may have a structure in which a light absorbing dye is dispersed therein, and may not be separately described, but may have a structure in which particulate components are dispersed together.
  • the touch film 150 can sense a touch when an object approaches the touch film 150 or touches the touch film 150.
  • the contact includes not only an external object, such as a user's hand, directly touching the touch film 150 but also a case where an external object moves or approaches the touch film 150.
  • FIG. 6 is a schematic view showing a cross-sectional structure of a display device 200 according to another embodiment of the present invention.
  • the display device 200 includes a first adhesive layer 221, a polarizing film, a touch film 250, a third adhesive layer 230, and a window layer 240 on the OLED panel 210 in order Stacked structure.
  • the window layer 240 may be made of a light-transmitting plastic or glass substrate.
  • the polarizing film has a structure in which a retardation film 222, a second adhesive layer 223, and a polarizer 224 are sequentially laminated.
  • first adhesive layer 221 formed between the OLED panel 210 and the retardation film 222; A second adhesive layer 223 formed between the retarder film 222 and the polarizer 224; And a third adhesive layer 230 formed between the polarizer 224 and the window layer 240.
  • any one of the first to third adhesive layers 221, 223, and 230 may include a light absorbing dye, or both of the two layers may include a light absorbing dye .
  • FIG. 7 is a schematic diagram illustrating a cross-sectional structure of a display device 300 according to an embodiment of the present invention.
  • the display device 300 has a structure in which an adhesive layer 330, a polarizing film 320, a touch film 350, and a window layer 340 are sequentially stacked on an OLED panel 310.
  • the adhesive layer 330 may have a structure in which a light absorbing dye is dispersed therein, and may not be separately described, but may have a structure in which particulate components are dispersed together.
  • the first light absorbing dye a dye having the following structural formula was used.
  • the second light absorbing dye a dye having the following structural formula was used.
  • Light absorbing dye A first light absorbing dye according to Preparation Example 1-1 and a second light absorbing dye according to Preparation Example 2-2 were dispersed in a binder resin to prepare a pressure sensitive adhesive composition.
  • the pressure-sensitive adhesive compositions of Examples 1 to 5 were prepared by varying the respective light absorbing dye contents in the compositions shown in Table 3 below.
  • the uniformly mixed composition was coated on a transparent substrate to prepare a pressure-sensitive adhesive sheet having a thickness of 18 ⁇ .
  • a pressure-sensitive adhesive sheet was prepared in the same manner as in Example 1 except that the first light absorbing dye was used alone.
  • a pressure-sensitive adhesive sheet was prepared in the same manner as in Example 1 except that the second light absorbing dye was used alone.
  • a pressure-sensitive adhesive sheet was produced in the ratio of the content of the light absorbing dye and the binder resin in the composition shown in Table 3 below.
  • the transmittance, the color temperature variation, and the adhesion amount for light in the wavelength region of 405 to 550 nm were measured for the pressure-sensitive adhesive sheet prepared in Comparative Examples 1 to 6 and the pressure-sensitive adhesive sheet prepared in Examples 1 to 5.
  • the amount of change in color temperature of the pressure-sensitive adhesive sheet was measured by repeating the process of exposing the pressure-sensitive adhesive sheet for 8 hours at a temperature of 85 ° C for 8 hours under the condition of solar irradiation (using a Xenon lamp) The amount of change after irradiation with sunlight was measured.
  • the adhesive force of the pressure-sensitive adhesive sheet was measured by peeling force (peeling speed: 300 mm / min, peeling angle: 180 DEG) with a universal tensile tester (UTM) after lapse of 30 minutes after lamination of a standard size specimen to a PET film.
  • the pressure-sensitive adhesive sheet according to Comparative Example 1 had a transmittance of 29.1% with respect to light having a wavelength of 410 nm
  • a pressure-sensitive adhesive sheet according to Comparative Example 2 had a transmittance with respect to light having a wavelength of 410 nm of 6.9% It was confirmed that as the content of the light absorbing dye increases, the transmittance to light in the wavelength range of 405 to 420 nm is lowered and the amount of color temperature variation decreases. However, in the pressure-sensitive adhesive sheet according to Comparative Example 3, whitening occurred, and the transmittance for light in the wavelength region of 405 to 550 nm could not be measured.
  • the pressure-sensitive adhesive sheets according to Comparative Examples 4 to 6 had lower transmittance to light in a wavelength region of 405 to 420 nm and decreased color temperature variation as the content of the second light absorbing dye was increased.
  • the pressure sensitive adhesive sheet prepared in Examples 2 to 5 was measured for a wavelength value (T20%) at a light transmittance of 20% in a wavelength region of 405 to 430 nm and a light transmittance of 10% in a wavelength region of 405 to 430 nm. (T10%) was measured.
  • the difference in wavelength value (

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Abstract

La présente invention concerne : une feuille adhésive de blocage efficace de la lumière d'une zone d'ultraviolets sans détériorer l'adhésion et le facteur de transmission de la lumière dans une zone de la lumière visible ; une composition adhésive comportant une résine liante et un colorant d'absorption de lumière dispersé dans la résine liante, permettant ainsi à la lumière d'une surface de longueur d'onde de 410 nm ou moins d'être efficacement bloquée et permettant l'applicabilité à divers types de dispositifs d'affichage.
PCT/KR2018/016078 2017-12-29 2018-12-18 Composition adhésive comprenant au moins deux types de colorants, feuille adhésive et dispositif d'affichage la comprenant Ceased WO2019132369A1 (fr)

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WO2025242899A1 (fr) * 2024-05-24 2025-11-27 Basf Se Dérivés d'acide cinnamique substitués utilisés en tant qu'absorbeurs d'uv et leurs utilisations

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